Comp Prog Chapter 4 Test - Java

The if-else statement will execute one group of statements if its boolean expression is true or another group if its boolean expression is false.

• True

• False

All it takes for an OR expression to be true is for one of the subexpressions to be true.

• True

• False

All it takes for an AND expression to be true is for one of the subexpressions to be true.

• True

• False

If the expression on the left side of the && operator is false, the expression on the right side will not be checked.

• True

• False

A random number, created as an object of the Random class, is always an integer.

• True

• False

In an if-else statement, if the boolean expression is false

• the statement or block following the else is executed.

• all the statements or blocks are executed.

• the first statement or block is executed.

• no statements or blocks are executed.

______ operators are used to determine whether specific relationships exists between two values.

• Arithmetic

• Logical

• Assignment

• Relational

A block of code is enclosed in a set of

• double quotes, " "

• braces, {}

• parentheses, ()

• brackets []

The boolean expression in an if statement must evaluate to

• positive or negative

• left or right.

• true or false

• degrees or radians

What will be the values of ans, x, and y after the following statements are executed? int ans = 35, x = 50, y = 50;

if (x >= y)

{ans = x + 10;x -= y;}

else

{ans = y + 10;y += x;}

• ans = 60, x = 50, and y = 100

• ans = 45, x = 50, and y = 0

• ans = 45, x = 50, and y = 50

• ans = 60, x = 0, and y = 50